Well Derek, I did not understand exactly, what you have done. But it seems
to me, that you exchanged or disposed some different pieces from the
Capablanca piece set according to SMIRF's average exchange values.
Let me point to a repeatedly written detail: if a piece will be captured,
then not only its average piece exchange value is taken from the material
balance, but also its positional influence from the final detail
evaluation. Thus it is impossible to create 'balanced' different armies
by simply manipulating their pure material balance to become nearly equal
- their positional influences probably would not be balanced as need be.
A basic design element of SMIRF's detail evaluation is, that the
positional value of a square dominated by a piece (of minimal exchange
value) is related to 1/x from its exchange value. Thus replacing some
bigger pieces by some more smaller types keeping their combined material
balance will tend to increase their related positional influences.
You see, that deriving conclusions from having different armies playing
each other, is a very complicated story.